cam gears probably won't happen, because of two reasons.
1) GTS cam gears are chain-driven, not belt driven.
2) the Intake
cam has a complex hydraulic cam-switching mechanism integrated into it. VVTL-I is dependant on factory cam gears.
make an adjustable exhaust cam gear in the future, but it's debatable when it will come along. I'd just wait for the cams to come out if anything.